70,585 people @ $40/ticket (tickets are actually more than that) = $2,823,400
Add in some $4 hot dogs, $6 coca-colas and $5 pizza slices here and there, not to mention parking and required donations for the good seats.
A portion of the ticket revenue goes to the visiting school I believe, per Big Ten rules. Non-conference games come with a cost as well, but it isn't a revenue sharing type deal like the Big Ten games are.
This is the closest I could find. It's a couple years old, and I'm not sure what is all considered as sources for both revenue and expenses.
Iowa FB revenue comparisons with Iowa State, Notre Dame, Big Ten Doc’s Office
Are you looking for the estimated net revenue per Iowa home football game?
What are the revenue sources per game?
1 - ticket sales - season tickets sales on a per game basis and individual day tickets
2 - concessions including food, beverage and merchandise sold only at the game
3 - parking - UofI receipts only
4 - required 'donations' - break it down to a per game level
5 - ????
What are the expenses?
This is quite a bit tougher because you can look at activity based costing or direct expenses allocated to the day. Personally I think ABC is a joke and too expensive to utilize efficiently so let's look at direct costs.
1 - Labor including coaching salaries, vendors, security, etc.
2 - Shared revenue agreement with opposing team
3 - the frickin' band - I would include this as an expense since they occupy seats that could be sold plus the travel expense for them during the year needs to be allocated
4 - advertising
5 - athletic deparment expenses that are first allocated over all other athletic squads with the football team paying their fair share. I would probably use total scholarship dollars as my allocation determiner.
6 - any other expense